Enables protein homodimerization activity. Predicted to be involved in positive regulation of canonical Wnt signaling pathway; positive regulation of cell population proliferation; and proteasome-mediated ubiquitin-dependent protein catabolic process. Predicted to act upstream of or within Wnt signaling pathway. Predicted to be located in cell junction; cytosol; and nucleoplasm. Predicted to be part of ubiquitin ligase complex. Predicted to be active in cytoplasm and nucleus. Orthologous to human GID8 (GID complex subunit 8 homolog). [provided by Alliance of Genome Resources, Apr 2022]